However, in spite of these limitations ZBS and ZFS are successfully experimentally demonstrated by a dipolar sphere of large permittivity [1]}, [2]}. In this case, the incident field equally excites the electric and magnetic dipoles that produce anisotropic scattering pattern.
Since the anisotropic distribution of the scattered field is governed by the interference between the electric and magnetic dipoles. For instance, the
in-phase and out of phase oscillations of the electric and magnetic dipoles can provide an opportunity to observe ZBS and ZFS, respectively [3]}, [4]}, [5]}, [6]}. Although these proposals are limited to the sphere of small radius \((r)\)  as compared to the incident wavelength \((\lambda )\) , such that \(r\ll \lambda \) .
